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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Ravi bhushan
Here is the detailed solution.
y did u do fnet=f1-f2. I mean it should b + know?
it's fnet on q due to q at A and B
yes
Because f1 and f2 are in opposite directions.
f2 in +ve direction and f1 in -ve direction.
In this question, they want frequency of axial line.
there is trick for axial line frequency. You will get same answer.